Improved leakage alakm foe vessels



G. BpMASSEY.

` Water Gage. y. i No. 62,144. Patented feb. 19,?1867;

'film @geiten tateatwt @Hirn IMPROVED LEAKAGE ALARM FOR VBSSELS.

digi Stimuli' referrer in in fjese' eltn'sv zmut init making part nf tige sans.

T0 ALL WHOM'T MAY CONCERK:

Be it known that I, G. B. Massi-DY, of New York, in the countyof New York, and State of New-York, have invented certain new and usefulimprovenients in Leakage Alarms and Registers for Vessels; end I do hereby-declaro that the following` is a full, clear, and exact description thereof, reference being had tothe accompanying drawings, making part of this specification, land to the letters of reference 1narkcd.thei'eon,like

letters indicating like parts wherever they occur. To enable others skilledin the nrt to constrilct and usemy i invention I will proceed to describeit.

My invention consists in certain improvements in the construction of leakage alarm and'registers for vessels, the invention having reference to improvements upon the .device patented to me on the 11th day of Angust, 185,7.

Figure 1 is a front view of my improved device.

Figure 2 is a vertical section :and

Figure 3 is a view of a portion detached.

In thedrawings, A represents the frame or case, which is circular in' forni, 'and is recessedLas represented. in fig. 2, with a beil, B', secured therein, these parts being `similar tofthose described in my patent above referred i to. To the front of this case, A, are secured two' metal plates, secured together by', posts or pins, `Z, the\ front plate I forming a dial, as represented in iig. lIl, and having marked oa itsV face aiserie's of4 nutnbcis indicating feet, withthe spaces between graduated to indicate inches; these parts being similar in their general constrnci tion to my former instrument. Across thecentre of 'thefac'e extends a bnr, L, as `shown in g. '1,and to this -bar is secureda drum, D, 'as shown.` Within this drum is placed a coiled spring, which tends toturn the Vsame in snc-h a manner vesito wind up the chain C on the drum. Attached to the drnm Dis a pinion, u, which gears into a wheel, H, located at the centre 'of the face, and to the shaft of which is secured a hand or index, t, as i shown clearly vin iig. 1. To the back side of the drum D is attached a plate, G, this` plate being circular in` form, and corresponding in size with the drurn D. The plate Gis connected to the drum-'D by aseries of pins, e, placed at equal distances in a circle around near theedge of the plate, as shown clearly in iig.' `3, thus forming,

as it were, a 'series of ratchet-teeth or coge. A hammer, a, attached to a suitable arnr, m, is pivoted at t, and i the arm m bent so as to bring the ham'rner a within the bell, as represented in` figs. 1 and 2. An 'elbow or arm, E, is attached rigidly to the arm m of the bell, as shown in iig. 3. This'arrn, E, consists of an upper and'rigid part, d, and a lower portion, c,'which is pivoted to d at`. The rear portion of this pivoted portion, e, extends obliquely up behind d, as represented in g. 3, in such n mannei that while it is free to move-inthe direction of the .hammer a, it cannot move' in the opposite direction beyond a given point' without locking against the part d, as represented in fig. 3, and thus rendering the arm E rigid. A dat spring, n, is fastened to the rear face of d in such a manner ,as to press against the rear face of e, above thepivot b, therebytending to keep the part e in line' with d, as shown iniig. 3.

` If, now, the drum D, with the plate G, is rotated in 'the' direction indicated by the` black arrowfit will be seen that the pin c will'strike against theipoinvt e of arm E,tl1ereby depressing the hammer d, until the pine has passed the point of e, when the hammer` will ily up and strike the bell; this upward` movement of the hammer being secured by the spring o, coiledl around the-pivot t,'as shown in iig.2. ,When, however, the drum is rotated in the opposite direction, as indicated by red arrow, the point` e will yield or tn rnon its pivot b, and permit the pins c to pass without affecting or lmoving the hammer. To the end of thechain C' is attached a oat, F, which is weighted to correspond with the tension of the spring in drinn Dfso as to keep this iioat on the surface of the water in the hold of the vessel. When the water rises the float willi` rise also, thereby permitting the drum to revolve and wind up the chain, the revolution ofthe drinn at theV saine time causing the bell to ring and give the alarm, and also to Inove the index over thevdial to `indicate tliejheight to which the-water has risen. As the water subsides the iloatjwill'` fall, thus nnwindinfo` tho'chain, andrntthe same time winding up the spring again; the operation of the instrument in this respect `beingthe'same as i described in my formerpatent.

Having thus described my invention, what I claim, is

1. The drum D, having theplate G attached thereto by the pins c, or an eqirvalentidevicc, in combination with the, jointed arm E of the hanimer, when arranged to operate asand for the pnrpose set forth. i

2. The combina-tion of the dliimV D, having the plate G and pinion vu. attached, `with the wheel H, indeg'll, and dial I, the drum being operated-by the rising and falling of the tioat F, as shown and described.

G. B. MASSEY.

Witnesses:

P. T. Dones, H, B, MUNN 

